Ivy

Ivy, being an evergreen plant, represents eternity, fidelity, and strong affectionate attachment, such as wedded love and friendship. The Ivy plant is also a strong plant which can grow in the hardest environment.

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Another association of Ivy as an evergreen, is perennial life and immortality. It also may represent dependence and attachment, which can be seen in the way it climbs trees and buildings to get sunlight. The Ivy leaf is also phallic, depicting the male trinity, but it can also be a female symbol denoting a force in need of protection. Conversely, however, its malevolent, poison feature can cause it to be seen often as ingratitude...

Love this name... I've read on some naming websites that it means "faithfulness," which I think gives the name a lot of weight for being so short and sweet.

In The Language of Flowers, Ivy means "Dependence".

The word ivy is derived from the Old English ifig, which means "climber".